Injection molding machine for composite articles

Details Injection molding machine for composite articles Injection molding machine for composite articles

1974-09-23

1977-06-14

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

425245R, 425247, 425812, B29F 110

Patent

active

040294544

ABSTRACT:
The present invention is concerned with a machine for the production by injection welding of articles of large size and/or complex structures having, at least locally, composite portions formed by the introduction of one of at least two materials of different compositions inside the other, the apparatus including a mould having fixed and movable portions, at least two separate systems for supplying materials to be injected into the said mould, and at least two distribution valves for these materials, one of the valves being of the multi-way type so as to cause a common discharge channel for material into the mould to communicate with either or both of the separate material-supply systems.

REFERENCES:
patent: 2191703 (1940-02-01), Anderson
patent: 2995778 (1961-08-01), Hill
patent: 3163687 (1964-12-01), Einhorn
patent: 3599290 (1971-08-01), Garner
patent: 3661487 (1972-05-01), Susin
patent: 3669598 (1972-06-01), Tucker
patent: 3690797 (1972-09-01), Garner
patent: 3793415 (1974-02-01), Smith
patent: 3888612 (1975-06-01), Schrewe et al.
patent: 3891362 (1975-06-01), De Vita
Garner, Def. Pub. Search Copy of Ser. No. 202,459, filed Nov. 26, 1971, Published in 869 O.G. 687, on Nov. 7, 1972 Def. Pub. T904,007.

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